Research on the Rotary Ultrasonic Facing Milling of Ceramic Matrix Composites

Li, Zhen; Yuan, Songmei; Zhang, Chong

doi:10.1016/j.procir.2016.10.077

Cited by 12 publications

(6 citation statements)

References 22 publications

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“…This can then result in greater values of surface roughness than if carefully chosen parameters are used in conventional machining processes to achieve a semi-ductile material removal mechanism. The fundamental principle behind this is that during indentation (or impacting) of brittle materials, median and radial cracks tend to be formed, as shown in Figure 13c and previous reported in rotary ultrasonic machining of brittle materials [43]. [45].…”

Section: Millingmentioning

confidence: 62%

“…Similarly to what has been reported in drilling, most of the studies in milling of CMCs have been focused on the comparison between conventional and ultrasonic assisted milling. Few researchers worked on force prediction models [41], [42], while others evaluated the surface finish by looking at the roughness and the morphology of the machined surface [43]. Yuan el at.…”

Section: Millingmentioning

confidence: 99%

“…A ≈ 10 µm layer induced by laser ablation was found at the entry (see Figure 20d and Figure 20e) and on the hole walls (see Figure 20b and Figure 20c), concluding via EDS its oxidised nature. A similar analysis was performed in a SiC/SiC concluding that the most suitable laser power is a compromise between oxidation, which increases with the power, and hole-shape quality, which decreases with the power [43]. To reaffirm the formation of an oxide layer when machining SiC-based CMCs and obtain further information, a quantitative analysis was performed by measuring the atomic percentage of elements via X-Ray Photoelectron Spectroscopy (XPS).…”

Section: Non-conventional Machining 41 Pulsed Laser Ablation (Pla)mentioning

confidence: 99%

“…Figure 13 Surface comparison between (a) RUSM and (b) CG[45]. (c) Crack system (median and radial) in single-edge non-overlapping cut with cutting velocity directed normal to the plane of cross-section in a brittle material[43].…”

mentioning

confidence: 99%

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The new challenges of machining Ceramic Matrix Composites (CMCs): Review of surface integrity

Gavaldà-Diaz

Luna

Liao

et al. 2019

International Journal of Machine Tools and Manufacture

221

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Ceramic Matrix Composites (CMCs) are currently an increasing material choice for several high value and safety-critical components, fact that has recently originated the need of understanding the effect of several machining processes. Due to the complex nature of CMCs -i.e. heterogeneous structure, anisotropic thermal and mechanical behaviour and generally the hard nature of at least one of the constituents (e.g. fibre or matrix)machining become extremely challenging as the process can yield high mechanical and thermal loads. Furthermore, the orthotropic, brittle and heterogeneous nature of CMCs result in different material removal mechanisms which lead to unique surface defects. Hence, this review paper attempts to provide an informative literature survey of the research done in the field of conventional and non-conventional machining of CMCs with a main focus on critically evaluate how different machining techniques affect the machined surfaces. This is achieved by exploring and recollecting the different material characterisation techniques currently used to observe and quantify the mechanical and thermal surface and subsurface damages and highlight their governing removal mechanisms.

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Section: Millingmentioning

confidence: 62%

Section: Millingmentioning

confidence: 99%

Section: Non-conventional Machining 41 Pulsed Laser Ablation (Pla)mentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

The new challenges of machining Ceramic Matrix Composites (CMCs): Review of surface integrity

Gavaldà-Diaz

Luna

Liao

et al. 2019

International Journal of Machine Tools and Manufacture

221

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show abstract

“…It is a purely mechanical and precise method of machining, primarily used for finishing and microproduction. RUM is frequently involved in the production of hard and brittle materials like ceramics [ 28 , 29 ], silicon [ 30 ], composites [ 31 ], glass [ 32 , 33 ] and crystals [ 34 ]. In RUM, a higher material removal rate (MRR) can be reached as opposed to diamond grinding or USM [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

Micromachining of Biolox Forte Ceramic Utilizing Combined Laser/Ultrasonic Processes

et al. 2020

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Micromachining has gained considerable interest across a wide range of applications. It ensures the production of microfeatures such as microchannels, micropockets, etc. Typically, the manufacturing of microchannels in bioceramics is a demanding task. The ubiquitous technologies, laser beam machining (LBM) and rotary ultrasonic machining (RUM), have tremendous potential. However, again, these machining methods do have inherent problems. LBM has issues concerning thermal damage, high surface roughness, and vulnerable dimensional accuracy. Likewise, RUM is associated with high machining costs and low material-removal rates. To overcome their limits, a synthesis of LBM and RUM processes known as laser rotary ultrasonic machining (LRUM) has been conceived. The bioceramic known as biolox forte was utilized in this investigation. The approach encompasses the exploratory study of the effects of fundamental input process parameters of LBM and RUM on the surface quality, machining time, and dimensional accuracy of the manufactured microchannels. The performance of LRUM was analyzed and the mechanism of LRUM tool wear was also investigated. The results revealed that the surface roughness, depth error, and width error is decreased by 88%, 70%, and 80% respectively in the LRUM process. Moreover, the machining time of LRUM is reduced by 85%.

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Advanced Mechanical Cutting Process

Mahamood

Akinlabi

2018

Advanced Noncontact Cutting and Joining Technologies

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Research on the Rotary Ultrasonic Facing Milling of Ceramic Matrix Composites

Cited by 12 publications

References 22 publications

The new challenges of machining Ceramic Matrix Composites (CMCs): Review of surface integrity

The new challenges of machining Ceramic Matrix Composites (CMCs): Review of surface integrity

Micromachining of Biolox Forte Ceramic Utilizing Combined Laser/Ultrasonic Processes

Advanced Mechanical Cutting Process

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